Problems of the week or month: a page of annotated links to weekly/monthly problem challenges and archives hosted at the Math Forum but administered by others, and to problems and archives elsewhere on the Web, color-coded for the level(s) of the problems posted.
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An exhibit that explores well-known statistical concepts - random sampling, margin of error, and confidence - through activities where YOU play the pollster. Also included is a wealth of links to Web sites related to statistics. more>>

Math puzzles for grades 3-4, 5-6, and 7+. You don't need to be a math whiz to solve them, just to be patient and find different ways of looking at things. New puzzles and the answer to the previous week's puzzles are posted each Thursday. Helpful hints and an archive are included.
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A Web site with activities, worksheets, overhead transparency masters, datasets, and assessment to support data exploration. It also contains an extensive collection of articles designed to enhance the statistics knowledge of the teacher. A resources page gives a select list of resources to support introductory statistics, including texts, Web sites, datasets, java applets, and mailing lists.
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Tricks based on simple mathematics, but which to those who don't understand the mathematics may seem magical. Since these tricks are based on mathematics, they are relatively easy to do and are pretty close to foolproof. Book recommendations and trick categories, with a discussion of the mathematics behind each trick. From the Cyberspace Middle School.more>>

Interactive middle school lessons on number and operations, geometry and measurement, functions and algebra, and probability and statistics. They feature: online activities (illustrative Java applets including: Venn diagrams; clock arithmetic; Pythagorean explorer; Tessellate!; vertical line test; boxplot; Monty Hall; Stock Exchange; Buffon's Needle; and many more); discussions, designed to give teachers ideas for how to introduce or explain a concept with a student or class; a dictionary of important mathematical terms used in the lessons; and four representative texts with the lessons linked into their chapter headings.
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A series of tutorials that teach students how to tessellate (somewhat in the style of the art of M.C. Escher) using HyperCard for black and white and/or HyperStudio for color, ClarisWorks, LogoWriter, templates, or simple straightedge and compass. The tessellation lessons include units incorporating rotations and glide reflections, a section called "Where's the Math" that elaborates on some underlying geometric principles, comments contributed by others, and samples of student work.more>>

Material about a class of mazes that have a complete mathematical description. Includes building your own labyrinth, an activity suitable for 4th-graders and up. Explores the relation between mazes and mathematics. Examples and calculations with Simple, Alternating, Transit (s.a.t.) mazes. Other facts about maze numbers. References.
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